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ប្រសិនបើអ្នកនៅពីក្រោយគេហទំព័រសូមប្រាកដថាដែន*.kastatic.org និង *.kasandbox.org គឺត្រូវបានចាក់សោរ។

មាតិកាសំខាន់

រំលឹកឡើងវិញពីការរបស់អាមេរិក

រំលឹកឡើងវិញនូវតម្លៃនៃកាក់អាមេរិកនិងព្យាយាមដោះស្រាយលំហាត់អនុវត្តន៍មួយចំនួន។

U.S. Coins

The most commonly used coins in U.S. money are start color #11accd, start text, q, u, a, r, t, e, r, s, end text, end color #11accd, start color #1fab54, start text, d, i, m, e, s, end text, end color #1fab54, start color #7854ab, start text, n, i, c, k, e, l, s, end text, end color #7854ab, and start color #ca337c, start text, p, e, n, n, i, e, s, end text, end color #ca337c.

Quarters

start color #11accd, start text, Q, u, a, r, t, e, r, s, end text, end color #11accd are worth start color #11accd, 25, end color #11accd cents. Below is an image of the front and back of a quarter.

Dimes

start color #1fab54, start text, D, i, m, e, s, end text, end color #1fab54 are worth start color #1fab54, 10, end color #1fab54 cents. Below is an image of the front and back of a dime.

Nickels

start color #7854ab, start text, N, i, c, k, e, l, s, end text, end color #7854ab are worth start color #7854ab, 5, end color #7854ab cents. Below is an image of the front and back of a nickel.

Pennies

start color #ca337c, start text, P, e, n, n, i, e, s, end text, end color #ca337c are worth start color #ca337c, 1, end color #ca337c cent. Below is an image of the front and back of a penny.
Want to learn more about U.S. coins? Check out this video.

Counting coins

ចូរមើលឧទាហរណ៏ :
What is the total value of the coins below?
One quarter is start color #11accd, 25, end color #11accd cents.
start color #11accd, 25, end color #11accd cents
A dime is start color #1fab54, 10, end color #1fab54 cents, and there are 2 dimes. Skip count by start color #1fab54, 10, end color #1fab54's two times from start color #11accd, 25, end color #11accd cents:
start color #11accd, 25, end color #11accd, comma, start color #1fab54, 35, end color #1fab54, comma, start color #1fab54, 45, end color #1fab54 cents
A nickel is start color #7854ab, 5, end color #7854ab cents, and there are 2 nickels. Skip count by start color #7854ab, 5, end color #7854ab's two times from start color #1fab54, 45, end color #1fab54 cents:
start color #1fab54, 45, end color #1fab54, comma, start color #7854ab, 50, end color #7854ab, comma, start color #7854ab, 55, end color #7854ab cents
A penny is start color #ca337c, 1, end color #ca337c cent, and there are 4 pennies. Count by start color #ca337c, 1, end color #ca337c's four times from start color #7854ab, 55, end color #7854ab cents
start color #7854ab, 55, end color #7854ab, comma, start color #ca337c, 56, end color #ca337c, comma, start color #ca337c, 57, end color #ca337c, comma, start color #ca337c, 58, end color #ca337c, comma, start color #ca337c, 59, end color #ca337c
The total value of the coins is 59 cents.

អនុវត្តន៏

លំហាត់ 1
  • បច្ចុប្បន្ន
What is the total value of the coins below?
  • ចម្លើយរបស់អ្នកគួរតែជា
  • ចំនួនគត់មួយដូចជាលេខ 6
  • ចំនួនទសភាគ ពិតប្រាកដ មួយដូចជា 0, point, 75
  • ប្រភាគ សម្រួលរួច ដូចជា 3, slash, 5
  • ប្រភាគ មិនទាន់សម្រួលរួច ដូចជា 7, slash, 4
  • ចំនួនចម្រុះ ដូចជា 1, space, 3, slash, 4
cents

Want to try more problems like this? Check out this exercise.